AQA GCSE Changes in energy, Specific Heat Capacity(Physics)
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Specific heat capacity is the amount of energy needed to raise the temperature of 1kg of a substance by 1°C.
The higher the value for specific heat capacity, the more energy needed to raise the temperature of the substance.
Practice Questions
1. Aluminium has a specific heat capacity of 900J/kg°C. Calculate the amount of energy needed to raise the temperature of a 2.5kg aluminium block from 20°C to 65°C.
2. Gold has a specific heat capacity of 130J/kg°C. Calculate the amount of energy needed to raise to the temperature of a 10g gold ring from 20°C to 600°C.
3. 10kJ of energy is transferred 1.5kg of material Y to raise its temperature by 20°C. Calculate the value of the specific heat capacity of Y.
4. Material G has a specific heat capacity of 650J/kg°C. 25kJ of energy is supplied to material 900g of material G to raise its temperature from 20°C. Calculate the final temperature of material G.
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